2633989 has 8 divisors (see below), whose sum is σ = 2793440. Its totient is φ = 2476656.

The previous prime is 2633987. The next prime is 2634001. The reversal of 2633989 is 9893362.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2633989 - 2¹ = 2633987 is a prime.

It is an Ulam number.

It is a Duffinian number.

2633989 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2633987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2542 + ... + 3424.

It is an arithmetic number, because the mean of its divisors is an integer number (349180).

2^2633989 is an apocalyptic number.

It is an amenable number.

2633989 is a deficient number, since it is larger than the sum of its proper divisors (159451).

2633989 is a wasteful number, since it uses less digits than its factorization.

2633989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059.

The product of its digits is 69984, while the sum is 40.

The square root of 2633989 is about 1622.9568694207. The cubic root of 2633989 is about 138.1034895490.

The spelling of 2633989 in words is "two million, six hundred thirty-three thousand, nine hundred eighty-nine".